ASTROSAT CZTI

Data Quality Report

Orbit 07680

Creation date: 2024-06-27T15:22:38.769750
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G06_104T01_9000001060_07680cztM0_level2.evt modeM0/AS1G06_104T01_9000001060_07680cztM0_level2_quad_clean.evt
Size (bytes)255,193,92035,579,520
Size243.4 MB 33.9 MB
Events in quadrant A1,210,220226,856
Events in quadrant B1,253,221232,902
Events in quadrant C3,612,185202,686
Events in quadrant D1,458,221211,042

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056941
B057500
C0127330
D063800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A284330.105522%
B284300.000000%
C284329510.376363%
D2843140.492438%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 2843 2843 0 0 0.00% 0.00%
B 2843 2843 0 0 0.00% 0.00%
C 2843 2843 288 288 10.13% 10.13%
D 2843 2843 9 9 0.32% 0.32%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 226 2956 40.77 313 307 65.0
A 12 194 2876 39.54 313 307 65.0
A 3 1 2434 32.74 313 307 65.0
B 0 214 18917 303.28 314 306 61.4
B 0 219 7073 110.27 314 306 61.4
B 12 111 5962 92.17 314 306 61.4
C 9 68 2446019 35265.56 296 298 69.4
C 8 208 6447 88.66 296 298 69.4
C 13 61 2258 28.26 296 298 69.4
D 2 152 154179 2013.95 308 298 76.4
D 2 136 115594 1508.96 308 298 76.4
D 5 233 12326 157.42 308 298 76.4

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter